FDA 483 OBSERVATION · #270 OF 1,923 MOST-CITED
Calibration - at intervals, written program, remedial action
FDA cited this observation 110 times across 105 firms in recent inspections. Below: how it breaks down by program area and fiscal year, and real examples of how FDA worded it on Form FDA 483.
What this grouping is not
An observation-type page groups FDA’s published citation records. The grouping, the compliance steps and the root causes are SPEQ synthesis, not an FDA classification of any citation, and a count measures what FDA published rather than risk.
What this observation is associated with
Firms cited for this observation also appear in FDA compliance actions — warning letters, injunctions, or seizures — at 4.2× the rate of the average FDA-cited firm (32.4% vs 7.8%), across 105 FEI-matched firms.
This is an association, not causation, and reflects co-occurrence in FDA's records — not a claim that the observation caused or preceded the action.
How FDA worded it — real examples
The calibration of instruments is not done at suitable intervals in accordance with an established written program.
The calibration of instruments and recording devices is not done at suitable intervals in accordance with an established written program.
The calibration of instruments, apparatus, gauges and recording devices is not done at suitable intervals in accordance with an established written program.
The calibration of instruments is not done at suitable intervals.
The calibration of instruments, apparatus, gauges and recording devices is not done at suitable intervals in accordance with an established written program.
The calibration of gauges and recording devices is not done at suitable intervals in accordance with an established written program.
Related SPEQ references
Where to read the requirements behind this observation area on SPEQ. These are SPEQ's topic and audience pages — not an FDA classification of the citation.
Examples are a representative sample of FDA's published inspection observations. Open the 483 observation explorer →